器件名称:
MC74VHCT245AMEL
功能描述:
Octal Bus Transceiver
文件大小:
106.98KB 共7页
简 介:
MC74VHCT245A Octal Bus Transceiver The MC74VHCT245A is an advanced high speed CMOS octal bus transceiver fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation. It is intended for twoway asynchronous communication between data buses. The direction of data transmission is determined by the level of the DIR input. The output enable pin (OE) can be used to disable the device, so that the buses are effectively isolated. All inputs are equipped with protection circuits against static discharge. The VHCT inputs are compatible with TTL levels. This device can be used as a level converter for interfacing 3.3 V to 5.0 V, because it has full 5.0 V CMOS level output swings. The VHCT245A input and output (when disabled) structures provide protection when voltages between 0 V and 5.5 V are applied, regardless of the supply voltage. These input and output structures help prevent device destruction caused by supply voltageinput/output voltage mismatch, battery backup, hot insertion, etc. Features http://onsemi.com MARKING DIAGRAMS 20 VHCT245A AWLYYWWG 1 1 SOIC20WB SUFFIX DW CASE 751D 20 VHCT 245A ALYWG G 1 High Speed: tPD = 4.9 ns (Typ) at VCC = 5.0 V Low Power Dissipation: ICC = 4 mA (Max) at TA = 25°C TTLCompatible Inputs: VIL = 0.8 V; VIH = 2.0 V Power Down Protection Provided on Inputs and Outputs Balanced Propagation Delays Designed for 4.5 V to 5.5 V Oper……
